It's usually safe to pitch them after the broody gets up from the nest to take care of the new chicks. My broodies usually make a new nest a little away from the old one and that's my clue the old eggs are done. Generally 2 days after the last one hatched.
She's probably itching to get up with the babies - so she'll quit soon. If not, take one or two and candle them. They most likely aren't any good. Especially if they were shipped eggs - where a 50% hatch rate is typical. Also - the length of time depends on weather conditions in your area too - I don't see your location - if you were in VA like me your eggs would be hatching a couple of days early because we're in the 90s-100s and highly humid. So by Day 23 for me - they 'd be duds.
All the eggs I've candled after the pullets have moved from the nest have been duds.
She's probably itching to get up with the babies - so she'll quit soon. If not, take one or two and candle them. They most likely aren't any good. Especially if they were shipped eggs - where a 50% hatch rate is typical. Also - the length of time depends on weather conditions in your area too - I don't see your location - if you were in VA like me your eggs would be hatching a couple of days early because we're in the 90s-100s and highly humid. So by Day 23 for me - they 'd be duds.
All the eggs I've candled after the pullets have moved from the nest have been duds.
We bought fertile eggs June 25th. 21 days was July 16th. Out of the 30 eggs, we have 15 chicks that have hatched.
How long after the 21 days should we leave the eggs that have not hatched? I dont want to pitch them if there is a chance that there is a "late bloomer" in the eggs.
Today, we are on day 23 under a broody hen.